Note: This content is accessible to all versions of every browser. However, this browser does not seem to support current Web standards, preventing the display of our site's design details.

  

Patient-driven control of FES-supported standing-up: A simulation study

Author(s):

R. Riener, T. Fuhr
Conference/Journal:

IEEE Transactions on Rehabilitation Engineering, no. 6, pp. 113-124
Abstract:

To control movements aided by functional electrical stimulation (FES) in paraplegic patients, stimulation of the paralyzed lower limbs might be adjusted in response to voluntary upper body effort. Recently, Donaldson and Yu proposed a theoretical approach, called “control by handle reactions of leg muscle stimulation” (CHRELMS), in which stimulation of the lower limbs depends on upper body effort, i.e., body posture and recorded hand reactions, and is aimed to minimize arm forces during standing up and standing. An alternative strategy is presented in this paper, which accounts for voluntary upper body effort as well, but does not require estimation of hand reactions. The objective of this study is to test both strategies by applying them to a generic two-dimensional (2-D) neuromusculoskeletal model. The model takes into account the major properties of muscle and segmental dynamics during FES-supported standingup movements of a paraplegic patient. In comparison to standing up without FES-support, both closed-loop strategies yield satisfying standing-up movements although no reference information (e.g., a desired trajectory) is required. Arm forces can be significantly reduced. Using the model to optimize the controller, timeconsuming and strenuous trial-and-error experimentation could be avoided. However, final experimental studies are planned to verify the presented strategies.

Year:

1998
Type of Publication:

(01)Article
Supervisor:



File Download:

Request a copy of this publication.
(Uses JavaScript)
% Autogenerated BibTeX entry
@Article { RieFuh:1998:IFA_2286,
    author={R. Riener and T. Fuhr},
    title={{Patient-driven control of FES-supported standing-up: A
	  simulation study}},
    journal={IEEE Transactions on Rehabilitation Engineering},
    year={1998},
    volume={},
    number={6},
    pages={113--124},
    url={http://control.ee.ethz.ch/index.cgi?page=publications;action=details;id=2286}
}
Permanent link